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Practice Listening: Select Missing Word ID: #39939 Short Ultrasound
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You will see a video detailing how chorionic villus biopsy is used for early genetic diagnosis during pregnancy. At the end of the recording the last word or group of words has been replaced by a beep. Select the correct option to complete the recording.
Ultrasound is used in prenatal screening and diagnosis. This pregnant woman is a carrier for the genetic illness cystic fibrosis. Her foetus can be diagnosed as early as 12 weeks by using a technique known as chorionic villus biopsy. Foetal cells are removed from the placenta. The DNA from these cells is amplified. And used to produce a (genetic fingerprint).
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